Data Sheet for Product
Technical Instructions   OpenAir™ Non-Spring Return, 24 Vac, Floating Control, Rotary Electric Damper Actuator 
Document No. 155-188P25   
May 22, 2014 
Page 4  Siemens Industry, Inc. 
Accessories, 
Continued 
Figure 5. 
Shaft Insert. 
ASK78.3U: Shaft insert for use with 3/8-inch  
(8 to 10 mm) diameter shafts. (Included in box with 
GDE/GLB Series). (Pkg/10) 
NOTE:  Factory-installed 1/2-inch guide must be 
removed prior to installation.
Figure 6. Shaft Guide Insert. 
985-101P25: Shaft guide insert, 1/2-inch 25 Pk 
(Factory-installed with GDE/GLB 
Series). 
T 
Figure 7. 
985-132:T  Floating input cable for use only with the 
Siemens Industry, Inc. Terminal 
Equipment Controller (TEC), 3 ft, 
12 pk.
T 
Figure 8. 
985-131: TFloating input cable; 3 ft, 12 pk.T 
Figure 9. 
985-134:
TDaisy chain cable 12 ft, 12 pk. 
985-135: TDaisy chain cable 25 ft, 12 pk.T 
Figure 10. NEMA Type 4X Weather Shield. 
ASK75.7U: GDE and GLB Actuators 
are UL listed to meet NEMA Type 4X 
requirements (a degree of protection 
against falling dirt, rain, sleet, snow, 
windblown dust, splashing water, 
hose-directed water, corrosion, and 
damage from external ice formation) 
when installed with an ASK75.7U 
Weather Shield and outdoor-rated 
conduit fittings. This weather shield 
may be mounted in any orientation. 
For dimensions, see Figure 26. 










